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| author | David Majnemer <david.majnemer@gmail.com> | 2013-07-09 09:20:58 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2013-07-09 09:20:58 +0000 |
| commit | fecf0d7a0157011964b4f31a7a5374076b1b236c (patch) | |
| tree | 345738601f1fa7f210a98dfd85ae074dbbe7d49b /lib/TableGen/Record.cpp | |
| parent | 36b6f7409d9f607317de9815ffc10656b608eab7 (diff) | |
| download | external_llvm-fecf0d7a0157011964b4f31a7a5374076b1b236c.zip external_llvm-fecf0d7a0157011964b4f31a7a5374076b1b236c.tar.gz external_llvm-fecf0d7a0157011964b4f31a7a5374076b1b236c.tar.bz2 | |
InstCombine: variations on 0xffffffff - x >= 4
The following transforms are valid if -C is a power of 2:
(icmp ugt (xor X, C), ~C) -> (icmp ult X, C)
(icmp ult (xor X, C), -C) -> (icmp uge X, C)
These are nice, they get rid of the xor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185915 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/TableGen/Record.cpp')
0 files changed, 0 insertions, 0 deletions